206 AN INTRODUCTION TO CHILD STUDY ciple, he can easily solve the remaining problems. More- over, his memory of the correct solution is far better than his memory of the mere mechanics of the solution. If the principle is clearly explained to the children who are not able to discover it for themselves, they can readily learn to apply it to situations solved by the same general plan. Learn- ing is greatly facilitated by gaining insight into the internal organization of the problem. Instruction in problem solving involves helping children to discover the organizing prin- ciple in a situation. This is true even in the preschool period and becomes increasingly important as the child grows older. The attitudes of persons in the child's environment have a subtle influence on his learning. A child's self-confidence is fostered not only by the acquisition of skills under favor- able conditions of instruction but also by attitudes of persons in his environment and the opportunities offered to think for himself. If a parent considers a brother or sister superior in some respect, the other child is likely to think of himself as inferior and to accept his parent's judgment as final. If parents always make decisions for their child, demanding obedience to their edicts, the child grows up without con- fidence in making decisions for himself. Of course, certain important decisions must occasionally be made by the parents on the basis of their superior ex- perience and knowledge. This the children can learn to understand, and not complain as one six-year-old did, "When it's something that doesn't matter much, mother lets us decide, but when it's something important, she makes the decision." The parent should gradually let the child make increasingly important decisions for himself and take the responsibility for his own decisions. For example, children should be given some choice of food. If children eat with adults who are served a wholesome diet, they may be given a freedom similar to that of adults to eat the food offered, with the understanding that there will be no substitutes for any dishes rejected.